Search your notes (and other fields) within your library

It is possible to search the contents of all your notes (and
other fields) when in your Papers library view. Simply go to the
search field in the top right of your library and select the
dropdown menu. You can now chose what field you would like to
search within. If, for example, you would like to search for
particular text contained within your notes, select notes as the
field. Type the word(s) you would like to search for and the
documents that contain the word(s) in your notes will be
filtered.

To find where in the notes the word(s) are placed, go to the
notes tab in the inspector window and start typing the word(s) you
are looking for. As you can see, they will be highlighted in the
text when you search for them.